Coal-lorry



L. WILPUTTE COAL LORRY.

APPLICATION FILE-D J AN. 20,1919.

Patented Dec. 21,1920.

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INVENTOB Z wo BY hi ATTORNEY /MM (2 M w 66,.

NITE'D STATES PATENT OFFHIE.

. LOUIS WILLBUTTE, OF NEW ROCHELLE, NEW YORK, ASSIGNOR F TWO-THIRDS TO ALICE A. :WILPUTTE, OF NEW ROCHELLE YDRKQ GOAL-LOBBY.

Specification of Letters Patent.

Patented Dec. 21, 1920.

Application filed January a0, 1919. serial No. 272.033.-

To all whom it may concern:

Be it known that L'Louis WILPUTTE, citior the United States, and resident of. New Rochelle in the county of Westchester' and State of lVew Yorkphaveinvented certain new and useful Improvements in Coal- Lorries, of which the following is 'aspecification.

The general object of the present, invention is to provide a coal lorry of the type employed in charging horizontal byproduct coke ovens with means 'ior controlling the of ready adjustment-to-thereby vary the amount of coalz-which maybe put into. each lorry hopper'in .each filling operation.

The various features of novelty which characterize my invention are pointed out with particularity in the claims annexed to and forming a part of this specification. For a better understanding of the invention, however, and the advantages possessed by it, reference should be had to the accompanying drawings .and descriptive matter in which I have illustrated and described a preferred embodiment of my invention.

Of the drawings Figure 1 is ail-lend elevation of a lorry and a portion oithe bunker from which the lorry is filledyparts being broken away and in section. I; i

'Fig. 2 is a plan view of thelorry.

Fig. 3 is an elevation of a portionot the apparatus shown in Fig. 1 taken at right angles to Fig. 1, and with parts broken away and in section.

Fig. iis a partial section on the line 4-4 of Fig. 2. g V

The coke oven coal charging lorry .shown in the drawings comprises a frame work A mounted on wheels B running on track rails C and supporting the lorry hoppers D of which there are four, as shown. Each lorry hopper is of a general conical 'shaplg and is provided with a discharge orifice at its lower end and with the'usual or suitable provisions for controlling the discharge of a coal throughthe orifice D and directing the coal discharged into] the corresponding charging hole formed in the roof of the oven structure over which the lorry runs. The lorry 1s filled with coal from anoverhead bunker provided with'a hopper discharge E for each lorry. The bottom portion of each .515

bunker hopper-E has a suitable gate or valve mechanismcontrolling the discharge of coal from the bunker hopper. The gate mechanism shown comprises'a double pair of gate or'swinging valve members F journaled on 80 parallel sets of trunnions F and connected together by gears F 'so that the two gates F for each hopper E- move similarly toward and away from one another in closing .and

opening. In so far as above described the novel with me. .1 I

To regulate the amount ofcoal which can apparatus shown embraces nothing new be charged into each lorry hopper in each filling operation I mount a tubular filling member at the upper end of each lorry hopper D. The lower end of each filling member extends down into the upper end of the corresponding hopper and the upperend 'of the fillingv member will normally belocated at a levelsomewhat abovethat'of the tops of the lorry hoppers PI'OPGIIZQ-AS shown,

' each filling member comprises, a stationary element G which is conicalflifl form and a lower vertically adjustable" element GA which is also conical in 'form and telescopes with the element Gr. Asshown each element G is provided with a circumferential flange G between its upper'and lower edges and this flange rests upon and is secured to beams D The latter, in turn, rest upon and are secured to the upper e of the corres 0nding hopper D. Each lling member A is provided at its upperand larger end with an out turned flange -Ci=*, and is supported by assing through the suspension bolts Gr flange G of the mem er G and through the flange G of the member GA. By adjusting the nuts G on the boltsGr it is possible .to raise or lower the-section GA-with respect 96 to the section 'G with which it is telescopically connected.

. In filling the hoppers D the lorry is moved along the rails C to the position in which each hopper-D is underjthe corresponding 100 bunker hopper E, as shown in Figs. land 4,

and the gate members F-of the bunker hoppers'are then opened. The coal which then ffiowsout of each bunker hopper E passes freely through the corresponding telescopic filling member G, GA, into the hopper, D beneath it until the coal fills the hopper sufficiently to clos the lower end of the filling member GA and thereby prevent the further passage of coal into the hopperv proper through the filling member G, GA. Those skilled in the art will understand that the upper portion of the coal mass in the hopper proper will then be in the form of a section of a cone of which the lines H, H, are surface elements. The inclination to the horizontal of the lines H, H, will be a definite angle determined by the physical characteristics of the coal.

After the lowerend of the filling member G, GA is thus sealed coal will begin to pile up in thefilling member G, GA. With the maximum amount of coal, which may thus accumulate, in the filling member the upper portion of the coal mass will be in the form of a truncated cone of which the'lines H H, are surface elements.

The filling member will fill up to this eX- tent only in case the gate members F are left fully open until the coal in the filling member clogs further discharge from the bunker hopper. In practice it is contemplated that the gates F will be closed gradually as coal proceeds to pile up in the filling member, so that the operator may save him-' self the extra effort required to move the gates F from the wide open to the fully closed position through the column of coal extending from the filling member up into the bunker hopper.

member will be in the form of a wedge shaped section of a cone with the angle of the wedge that shown between the lines H H in Fig. 4. It will be understood by those skilled in the art that the inclination of the lines H and H to the horizontal will be the same in each case and will be fixed by the physical characteristics of the coal. As-' suming that the operator permits the coal in the filling member to accumulate until the mass of coal reaches to the gates F F the maximum variation in the amount of coal possible to put intothe lorry proper at each charging operation with any given vertical adjustment of the member GA will be the amount of coal necessary to add to the pile of which the lines H H are marginal lines to convert this ile into the one of which the lines H are conical surface elements. The parts may well be so proportioned that this maximum possible variation will be in practice less than 1% of the total weight of coal in the'lorry. Such a V riation is negligible from a practical stand If the gates F, F, are fully closed as the coal in the filling member -ThoSe skilled in the art will understand the practical importance of means readily adjustable in accordance with oven requirements for automatically limiting the amount of coal put into the lorry hoppers to a desired maximum; The oven charging operaation on an ordinary coke oven battery. of.

commercial proportions is an operation which must be repeated every few minutes for twenty-four hours of each day and for each day of the year. Much difficulty' has heretofore been caused through the failure to have means insuring the charging of the proper amount of coal into each hopper ofthe latter. While it is practically possible to weigh the total amount of coal in the lorryv in each lorry filling operation, it is not practically feasible to weigh the amount of coal in each lorry hopper and unless the lorry hoppers are all filled alike serious difficulties in the oven charging operation may result even though the total amount of coal held by the lorry is the-exact amount required. here no filling member is employed it is practically impossible to obtain by eye measure the p1 )er amount of coal in each hopper, especially in charging the lorry at night, on account of the blackness of the coal and the difliculty in distinguishing between a mass of moving coal and a stationary mass of coal. v

While in accordance with the provisions of the statutes I have illustrated and described the best embodiment of my invention now known to me, it will. be apparent to those skilled in the art that changes may be made in the form of apparatus disclosed without departing from the spirit of my invention as set forth in the appended claims, and that under some conditions certain features of my invention may be used to advantage without a corresponding use of other features.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a coke oven charging lorry the combination with' a lorry hopper open at its upper end and provided with a valved discharge orifice at its lower end of a vertically disposed open ended tubular filling member of adjustable length mounted in the upper end of the hopper and substantially smaller in horizontal cross section than the latter.

2. In a coke oven charging lorry the com;

bination with a lorry hopper open at its upper end and provided with a valved discharge orifice at its'lower end of a vertically disposed open ended tubular filling memberv 5 .mounted in the upper end of the hopper andsubstantially smaller in horizoiftal CIOSS'SBC',

tion than the latter and provided with a telescopic lower end. whereby the level of the lower end of said filling member may be adjusted relative to the hopper proper without 10 changing the level of. the upper end of the filling member relative .to the hopper.

LOUIS WILPUTTEQ 

